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Question
Cube of `((-1)/4)` is ______.
Options
`(-1)/12`
`1/16`
`(-1)/64`
`1/64`
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Solution
Cube of `((-1)/4)` is `bb(underline((-1)/64)`.
Explanation:
Cube of `((-1)/4)` is `((-1)/4)^3`
So, `((-1)/4)^3 = ((-1)/4) xx ((-1)/4) xx ((-1)/4)`
= `((-1) xx (-1) xx (-1))/(4 xx 4 xx 4)`
= `(-1)/64`
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